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These Really Exist: Giant Concrete Arrows That Point Your Way Across America

by Ken Jennings
Every so often, a hiker or a backpacker will run across something puzzling: a ginormous concrete arrow, as much as seventy feet in length, just sitting in the middle of scrub-covered America. What are these giant arrows? Jeopardy champ Ken Jennings solves the mystery.
  • Jo Ann

    Mysterious Concrete Arrows guided early airmail pilots across the U.S....True OR False?

  • Golddust Twin

    These Really Exist: Giant Concrete Arrows That Point Your Way Across America remains of The Transcontinental Air Mail Route

  • Diana A

    Big Yellow Arrows across N. America (now just cement), Old Transcontinental Air Mail Route

  • Ian Francis

    In the 1920s, the US Postal Service built hundreds of lighted navigation beacons to help guide the way from the east to west coast on the first cross-country airmail route. The beacons were decomissioned in the 1940s, and the beacon towers scrapped for metal during World War II, but the giant concrete arrows, some 70 feet long, still populate the US landscape today.

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